What are the dangers of soil pollution? What is the damage caused by soil pollution?

The main hazards of soil pollution are:

1. It leads to a decrease in crop yield and the quality of agricultural products.

2. Polluting groundwater and surface water.

3. Affect the quality of the atmospheric environment.

4. Endangering human health.

The pollutants entering the soil mainly have different destinations such as fixation, volatilization, degradation, dispersion and leaching due to their different types and properties. Heavy metal ions are mainly ions that can make soil inorganic and organic colloids stably adsorb.

Including the ions that are obligate adsorption with oxides and tightly bound to humin, as well as insoluble metal hydroxides, carbonates and sulfides produced in the chemical equilibrium of soil solutions, most of which are fixed in the soil and difficult to eliminate; Although some chemical reactions can mitigate its toxic effects, they are still a potential threat to the soil environment.

1. Soil pollution will lead to reduced crop yield and agricultural product quality;

2. Soil pollution will affect groundwater and surface water;

3. Soil pollution affects the quality of the atmospheric environment;

4. Soil pollution endangers human health.

Hopefully, thank you.

Once the soil is contaminated, it can cause the following harmful consequences:

First, the yield and quality of crops have decreased;

second, polluting groundwater and surface water;

Third, it endangers human health.

Contaminated soil contains a large number of harmful substances, some soil harmful particles and pesticide gas residues will also float in the air, human beings through breathing, eating contaminated food, contact with polluted soil, etc., causing acute and chronic poisoning.

Soil pollution leads to serious direct economic losses from crop pollution and reduced yields.

Soil pollution can be broadly divided into four main categories: to cash crops.

harm to material qualities, harm to human health, harm to other environments.

1. Soil pollution leads to serious direct economic losses.

According to statistics, more than 10 million tons of grain are reduced by heavy metals in land pollution every year, and as many as 12 million tons of grain are polluted by heavy metals every year, with a total economic loss of at least 20 billion yuan.

2. Pollution of article quality includes excessive and close to critical levels of heavy metals such as cadmium, chromium, arsenic, and lead in grain, vegetables, fruits and other foods in many places. In some areas, the polluted irrigation has made the taste of vegetables worse, easy to rot, and even unpleasant odors.

3. Soil pollution is serious to human beings is that soil will accumulate pollutants in plants (crops) and enrich into human bodies and animals through the food chain, and some toxic pollutants, such as mercury and cadmium, are enriched into crop fruits, and poisoning occurs after humans or livestock eat them. Now there are multiple cancers.

That's why.

4. Environmental pollution, such as polluted topsoil with high concentration of heavy metals, is easy to enter the atmosphere and water bodies under the action of wind and water to form acid rain.

Poisonous water and other phenomena.

Knowing that soil pollution harms crops, people, the environment, and so many other hazards, I want to protect the environment.

Start from me, start from the bits and pieces of life, and reduce or eliminate soil pollution.

Soil pollution refers to the phenomenon that the pollutant substances produced by human activities enter the soil through various ways, and their quantity exceeds the capacity of the soil to accommodate and assimilate, resulting in changes in the properties and compositions of the soil, resulting in the imbalance of the natural functions of the soil and the deterioration of soil quality. Soil pollution substances are extremely widespread, mainly from industrial wastewater, urban domestic sewage and solid waste, pesticides and fertilizers, livestock excrement, biological residues and atmospheric deposition.

Excessive levels of contaminants in soil can cause potential health and ecological hazards. Soil contamination can be caused by many human activities, such as discarding and discharging solid or liquid pollutants to the soil surface; application of pesticides; leaks from underground storage tanks, pipelines, and landfills; and the deposition of air pollutants (such as lead dust, particulate matter, etc.). Common contaminants are:

volatile hydrocarbons such as benzene, toluene, ethylene and xylene (BTEX) contained in fuels; heavy paraffins and organochlorides such as PCB (polychlorinated biphenyls) and PCP (pentachlorophenol); lead, cadmium, arsenic, mercury and other inorganic substances; tritium and other radioactive elements. Soils are often contaminated with a mixture of multiple substances. The accumulation, activity, toxicity and overall importance of any particular pollutant depend on the interaction of soil properties, physicochemical properties of pollutants, and climatic, hydrological, and other environmental conditions.

1.Soil pollution leads to serious direct economic losses from crop pollution and reduced yields. There is a lack of systematic investigation data on the economic losses caused by various types of soil pollution.

Taking soil heavy metal pollution as an example, the country's grain production is reduced by more than 10 million tons every year due to heavy metal pollution, and as many as 12 million tons of grain contaminated by heavy metals are also affected by heavy metals every year, with a total economic loss of at least 20 billion yuan.

2.Soil pollution leads to declining biological quality Most of the soil in the suburbs of cities in China has been polluted to varying degrees, and the content of heavy metals such as cadmium, chromium, arsenic, and lead in grain, vegetables, fruits and other foods in many places exceeds the standard and is close to the critical value.

In addition to the hygienic quality of food, soil contamination also significantly affects other qualities of crops. In some areas, the polluted irrigation has made the taste of vegetables worse, easy to rot, and even unpleasant odors. The storage quality and processing quality of agricultural products cannot meet the requirements of deep processing.

3.Soil pollution endangers human health Soil pollution will accumulate pollutants in plants (crops) and enrich them into human and animal bodies through the food chain, endangering human and animal health, causing cancer and other diseases.

4.Soil pollution leads to other environmental problems After the land is polluted, the polluted topsoil with high concentrations of heavy metals is easy to enter the atmosphere and water bodies under the action of wind and water power, respectively, resulting in other secondary ecological and environmental problems such as air pollution, surface water pollution, groundwater pollution and ecosystem degradation.

1. Threats to national food security and food security. Soil pollution has led to a decline in the quality of cultivated land, which directly threatens the red line of 1.8 billion mu of cultivated land, resulting in excessive levels of heavy metals in grain and agricultural products, affecting food safety.

2. Endangering human health. After the heavy metals in the soil enter the human body through the food chain, they have the hazards of carcinogenic, teratogenic and mutagenic.

3. Affecting social stability. The prevention and control of soil pollution involves the resettlement of workers in relocated industrial and mining enterprises, and the compensation for damage to farmers' economy and people's health, etc., and if not properly handled, it will affect social harmony and stability.